| 摘要 |
<p>A membrane type liquid purification system that comprises: a supply means feeding a liquid to be purified; a purification unit with a membrane (6) and having an inflow port connectable to the supply means and an outflow port delivering purified liquid, the liquid to be purified is separated by the membrane (6) from the purified liquid; a purified liquid storage means (9) connected to the outflow port for storing the purified liquid; a redistribution loop coupled to the storage means (9) for supplying users of the system with purified liquid; a valve means for alternatively connecting the inflow port with the supply means and the redistribution loop; pump means (4) for passing liquid through the membrane (6) with a predetermined first pressure in purifying cycles when the supply means is connected to the inflow port and refeeding purified liquid with a predetermined second pressure to the inflow port in cleaning cycles when the port is coupled to the redistribution loop; and discharge means for discharging at least a portion of the resupplied purified liquid together with any contaminants redissolved from the membrane during the cleaning cycles.</p> |
